Okay, this is from Majin no omocha, one of my new original stories I came up with.
This shows the sealed memories inside Byakuya running rampant or returning to Fubuki, not quite sure about it yet. Anyways, when Byakuya was young he was mistreated by nearly every human he met upon and Fubuki, who found him one day, took a liking to him, took him with him and grew really fond of Byakuya, who became really cheerful and grew to love Fubuki. But one day Fubuki got possessed by some evil spirit after he sees Byakuya getting hurt really bad and goes on a rampage. Unfortunately, he can´t control himself and does unspeakable things to Byakuya who, understanding what´s happening, accepts all of it. After Fubuki collapses, Byakuya seals all of Fubukis memories concerning him inside himself and leaves Fubuki, planning to never meet him again.
Many, many years later they meet again and one day Kisai (a genie) jokingly sets free the sealed memories.